Dark Pit from Kid Icarus: Uprising and the Duck Hunt Dog are two of the new characters set to enter the arena, while Ganondorf, Mr. Game and Watch, Ness and Falco all return once you've beaten Classic Mode enough times. Dr. Mario is also set to be playable, along with Wario, ROB and Jigglypuff.

While there have been reports Metal Gear Solid's Snake could be back as well, streamers are saying it's unlikely seeing as there's no Konami copyright information in the game credits. Squirtle and Wolf haven't been spotted either, despite trophies having surfaced for them. As for Bowser Jr., who was rumoured to be a new character in the earlier leak, there's no news one way or the other.

We'll be livestreaming the game ourselves tomorrow at 2PM PT, 5PM ET, 10 PM BST, and Saturday, September 13 at 7 AM AEST. Be sure to watch it as it's happening for a heap more reveals and to see the game in action.

Luke Karmali is IGN UK News Editor. You too can revel in mediocrity by following him on Twitter.